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m m m m i m m r mm m r m m m m4rr <br /> Table 3 Historical Groundwater Analyttca Data,T&T Truclang,Lodi,California <br /> All concentrations m /L <br /> Sample Depth, EPA Method 8260E <br /> tdenttficaton Date feet Benzene Toluene Eth lbenzene Xylenes TP14-G MTBE DIPS ETBE TAME Ten-Butanol Other Anal es <br /> 10/31/2001 900 <0 50 <0 50 1 3 360 17 <br /> 3/22/2002 410 <0 50 <0 50 <0 50 320 36 <br /> 6/25/2002 210 <0 50 <0 50 <0 50 230 28 <br /> 8/27/2002 220 <0 50 <0 50 <0 50 200 13 — <br /> 11/7/2002 120 <0 50 <0 50 <G 50 180 16 <br /> 2/10/2003 120 <0 50 <0 50 <0 50 210 10 <br /> 5/15/2003 44 <0 50 <0 50 <0 50 170 33 <0 50 <0 50 <0 50 96 <br /> 8/11/2003 33 <0 50 <0 50 <0 50 120 51 <0 50 <0 50 <0 50 <5 0 <br /> 12/8/2003 <0 50 <0 50 <0 50 <0 50 110 66 <0 50 <0 50 <0 50 110 <br /> MW-4 8/14/19981`1 60 80 93 <1 0 <1 0 <10 1500 <50 <br /> 4/27/1999 24 22 <05 17 1 600 100 Isopropyl benzene 7 4 <br /> 4/27/1999 n Propylbenzene 0 97 <br /> 4/27/1999 <br /> sec burylbenxene 2 0 <br /> 4/27/1999 n butylbenzene 1 5 <br /> 1/26/2000 37 <0 5 <05 <05 280 47 <br /> 4/20/2000 07 <0 5 <05 <05 430 120 <br /> 7/21/2000 21 <05 <05 <05 140 180 <br /> 10/31/2000 12 <10 <10 <10 110 490 <br /> 1/19/2001 26 <20 <20 <20 <200 1200 <br /> 5/18/2001 <20 <20 <20 <2.0 <200 960 <br /> 8/20/2001 <050 <0 50 <0 50 <0 50 68 310 <br /> 10/31/2001 <20 <20 <20 <20 <200 560 <br /> 3/22/2002 <050 <0 50 <0 50 <050 190 340 <br /> 6/25/2002 <10 <10 <10 <10 <100 410 <br /> 8/27/2002 <10 <10 <10 <10 <100 200 <br /> 11/7/2002 <0 50 <050 <050 <0 50 <50 380 <br /> 2/10/2003 <050 <050 <0 50 <0 50 51 500 <br /> 5/15/2003 <15 <15 <15 <15 <200 760 28 <15 <15 77 <br /> 8/11/2003 <10 <10 <10 <10 <100 48D 16 <10 <10 <10 <br /> 12/8/2003 <0 50 <0 50 <D 50 <0 50 <50 400 14 <050 <0 50 9 9 J <br /> Supply Well 11/7/20D2 <0 50 <0 50 <050 <0 50 <50 <050 <br /> 2/10/2003 <0 50 <0 50 <0 50 <0 50 <50 <0 50 <br /> 5/15/2003 <0 50 <0 50 <0 50 <050 <50 <050 <0 50 <0 50 <0 50 <50 <br /> 8/11/2003 <0 50 <0 50 <0 50 <0 50 <50 <0 50 <0 50 <0 5D <0 50 <5 0 <br /> 12/8/2003 <0 50 <0 50 <0 50 <0 50 <50 <0 50 <0 50 <0 50 <0 50 <5 0 <br /> TPH G=total petroleum hydrocarbons as gasoline <br /> MTBE=methyl t butyl ether <br /> Notes (a) BT$X and TPH G analyzed using EPA Method 8020/602 NMF analyzed using EPA Method 8020/602 and 82608 <br /> (b)The MTBE result shown is from EPA Method 8020/602 and not the result from EPA Method 8260B <br /> The EPA Method 8260B result For MTBE(46µg/L)was quahfied by the lab as'elevated as a result of possible interference <br /> J flag Biased slightly high A Fraction of MtBE(typically less than 1%)converts to Teri Butanol during the analysts of water samples [GFFAnalytical considers <br /> this conversion effect to be mathematically stgmficant In samples that contain MtBE/Tert Butanol In rauos of over 20 1 <br /> I <br /> P-\PrcWa,n 211106\21417\Hq.—\r3 xh <br />